I would suggest to broaden the loot tiers. Actually only 20-50k players get into usable loot tiers, only 5-10% of the participants (wonderland, corellia, etc).
These are seasonal events (including Return to Morlovia and Santa’s Challenge) and do not have a loot tier ranking. All the player needs to do is to finish all stages in all difficulties to be able to get all the loot as advertised.
However, it is different for special challenge events, i.e. Teltoc, Wonderland, Avalon, Grimforest and Pirates.
loot tier ranking in these special challenge events.